Switchgear incorporating an active filter

Details Switchgear incorporating an active filter Switchgear incorporating an active filter

1994-12-05

1996-07-30

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electrical power distribution systems and devices

361611, 307105, 307126, 323205, 323220, H02B 120, H02B 1112

Patent

active

055418082

ABSTRACT:
An active filter device is provided for incorporation into a switchgear lineup. The switchgear lineup has a plurality of electrical sections including a main circuit breaker section and a load circuit breaker section spaced from the main circuit breaker section. The active filter device is applied as an integral part of the power distribution switchgear equipment, positioned between the main circuit breaker section and a load circuit breaker section. From a single location, power quality is improved for the aggregate of all loads connected to the switchgear and the upstream source. The power quality improvement may include harmonic current attenuation, harmonic voltage attenuation, load balancing, high speed power factor correction, and reduced magnitude voltage sags.

REFERENCES:
patent: 3130353 (1964-04-01), Mount
patent: 3364394 (1968-01-01), Metz
patent: 3967165 (1976-06-01), Olashaw et al.
patent: 4205207 (1980-05-01), Clausing
patent: 5162983 (1992-11-01), Kumagai

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